You can download DSTWO EOS latest version v1.11_2012_1224 from the Website:http://eng.supercard.sc/manual/dstwo/download.htm

You can download R4i-SDHC 3DS RTS Firmware(Kernel) v1.77b from the Website: http://www.r4i-sdhc.com/downloade.asp

You can download R4i GOLD 3DS RTS Firmware(Kernel) v1.64 from the Website: http://www.r4ids.cn/r4i-download-e.html

For 3DS V9.4.0-21 and DSi v1.45 and 2DS and DS

official site link: http://www.r4isdhc.com.cn/showDownload.asp?id=10

For 3DS V9.4.0-21 and DSi v1.45 and 2DS and DS

official site link: http://www.r4isdhc.com/2014-r4isdhc-upgrade/

For 3DS V9.4.0-21 and DSi v1.45 and 2DS and DS

official site link: http://www.r4isdhc.com/2014-r4isdhc-snoopy/

For 3DS V9.4.0-21 and DSi v1.45 and 2DS and DS

official site link: http://www.r4isdhc.com/2014-r4isdhc-dual-core/

For 3DS V9.4.0-21 and DSi v1.45 and 2DS and DS

official site link: http://www.r4isdhc.com/2014-r4isdhc-rts-lite/

You can download Acekard 2i Kernel from the Website:http://www.acekard.com/download.php